HBO are continuing to theme the trailers for Game Of Thrones' impending fourth season. Following the "Vengeance" clip, here's the latest, revolving around "Secrets".

Whose secrets? Well we start with the Stark sisters, and move on past Cersei, Jon, Littlefinger, Tyrion and Ygritte. But the strongest presence is Daenerys, mustering increasingly large dragons and troops in pursuit of "justice"...

It's Season Four, but we're still in A Storm Of Swords, the third volume of George RR Martin’s sprawling Song Of Ice And Fire series. New characters will be coming into play though, including Mace Tyrell (Roger Ashton-Griffiths), Ellaria Sand (Indira Varma), Daario Naharis (Michiel Huisman), Styr, Magnar of Thenn (Joseph Gatt) and Prince Oberyn Martell (Pedro Pascal). Mark Gatiss will also crop up as Tycho Nestoris, a representative of the Iron Bank.

Neil Marshall is once again among the directors, and the new season arrives in the States on April 6 and will screen in the UK starting April 7 on Sky Atlantic.